钢-混凝土组合桥面板滑移及掀起效应研究

he experimental test processes have been studied on the steel-concrete composite slab, in which the connector between the steel girder and the concrete slab was perfond strip. In order to test the crack in the concrete, the slip and uplift between the steel girder and concrete slab etc, a Fiber Bragg Grating(FBG) sensing system was researched during the experiment. The test conclusions show that the crack in the concrete was tested exactly by the Fiber Bragg Grating sensing technology, which was also agree well with the results of strain gauge. The slip and uplift between the steel girder and the concrete slab was not easy be caught by the strain gauge, but the Fiber Bragg Grating sensing technology got better achievements in the same test condition. Reference is made from the tentative research work for other researchers.